Colloidal synthesis and air-annealing of CdSe nanorods for the applications in hybrid bulk hetero-junction solar cells

Title
Colloidal synthesis and air-annealing of CdSe nanorods for the applications in hybrid bulk hetero-junction solar cells
Author(s)
박진호파바움메
Keywords
SEMICONDUCTOR NANOCRYSTALS; NANOPARTICLES; DEVICES
Issue Date
201007
Publisher
ELSEVIER SCIENCE BV
Citation
MATERIALS LETTERS, v.64, no.13, pp.1415 - 1417
Abstract
TOP/TOPO-capped CdSe nanorods were synthesized by colloidal route process using hexylphosphonic acid as a ligand and CdO as a Cd precursor, and the influence of thermal annealing in air on the morphology, crystal structure and optical properties of CdSe nanorods has been elucidated by XRD, TEM and PL analysis It was observed that as-synthesized CdSe nanorods of similar to 4-5 rim diameters and similar to 20 nm lengths go through solid state morphology transformation upon annealing at 350 degrees C in air atmosphere, forming the nanorods with bullet shape with one side pointed and the other side having a blunt hexagon with the average diameter of similar to 12 nm and length of similar to 25 nm The annealed CdSe nanorods showed improved PL emissions without the shift of peak positions, indicating significant improvement of the crystallinity and optoelectronic properties of nanorods caused by reduction of defects (C) 2010 Published by Elsevier BV
URI
http://hdl.handle.net/YU.REPOSITORY/23935http://dx.doi.org/10.1016/j.matlet.2010.03.026
ISSN
0167-577X
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공과대학 > 화학공학부 > Articles
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